Concept explainers
Postage costs First-class postage for a standard letter is 49 cents for the First ounce or part of an ounce that a letter weighs plus an additional 21 cents for each additional ounce or part of an ounce. Use the table or graph of the postage function, f(x), to determine the following.
(a)
(b)
(c) Is
(d)
(e)
(f) Is
Weight x | Postage f(x) |
|
$0.49 |
|
0.70 |
|
0.91 |
|
1.12 |
|
1.33 |
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Chapter 9 Solutions
MATHEMATICAL APPLICATIONS FOR PKG
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